Additional information can be found in the Help-section.
Pics2Phone needs to receive permission to use Apple's Photo-App and your Dropbox - please see below why and how it works.
Pics2Phone needs access to location services to use Apple's "Camera Roll" and save the photos from the PC or Dropbox in it - this procedure is required by the iOS operating system.
The App is not using your position-data/GPS and does not record any location information.
Dropbox downloads photos in original size for optimum quality and experience.
If you are not on WiFi, this download-volume will be counted against your monthly data allowance.
Albums have one specific characteristics that you need to be aware of
What does this mean for the Pics2Phone-App?
If you want to know more about how "Albums" work on the iPhone and iPad, pls. follow this link.